I have a 7130e and a BES in our company. I am using Lotus Notes for email, appointments, etc. There is no field for a PIN in Lotus Notes and I've found that if I Sychronize my Address Book in Lotus Notes, it deletes the PINS of my colleagues that I have previously entered.

Any thoughts on how to get around this? I've ended up putting their PINs in the PAGER field in Lotus and copy, paste when they get deleted, but this can get tedious and annoying.

Yeah, it is a pain in the arse. But that is the limitations of the technology at the moment. Lotus Notes doesn't have a PIN field, so the BlackBerry has no where to sync to. I normally tell people to use the 'other' field, but 'pager' will work just as well.